Daniel Thomas Sheaffer was born November 29, 1929. He held degrees from Oklahoma City Southwestern College, Oklahoma City University, East Central State University, Tulsa University, Luther Rice Seminary, and Southwestern Assemblies of God University.

Dr. Sheaffer's preaching ministry began at the age of seventeen. When he didn't have a church to preach in, he would preach on street corners or use school facilities to hold revivals. He married his true love and life-long partner, Bonnie Rose Benson, in 1950, and together they pursued a very successful nationwide evangelistic ministry. Later they settled into their true calling and pastored several churches in Oklahoma.

Dan & Bonnie became pastors of First Assembly of God in Oklahoma City in 1969 with a congregation of 42 members. By 1972, a 1,250 seat auditorium had been built and outgrown, and then in 1979, Dr. Sheaffer led his congregation in building a new church complex that he named "Crossroads Cathedral." For 37 years, people accepted Jesus Christ as Savior in nearly every service.

Pastor Sheaffer and Bonnie hosted the popular Trinity Broadcasting Network program, "The Answer," for seventeen years and were frequent hosts and guests of TBN's "Praise the Lord" program. He was the author of two books of Bible questions and answers and a church growth book entitled, "Together We Grow."

In 1964, Pastor Sheaffer and Bonnie began their extraordinary leadership in missionary work overseas. To help fund the costs of missionary trips, Dan began a very successful homebuilding and general contracting business to supplement his pastoral income. The Sheaffers founded and built churches in Liberia, Kenya, Nigeria, South Africa, Paraguay, Colombia, Jamaica, Chile, Malawi, Burundi and others.

After trying retirement for a short time in 2007, Dr. Sheaffer said, "I was called to preach!" and, along with Bonnie, founded Harvest Assembly of God Church in Oklahoma City.

Dan was joyously greeted in Heaven Thursday, September 2, 2010 by many thousands of souls who came to know Jesus Christ through his amazing 64-year ministry around the world